-//============================================================================
-// Copyright (c) 1996-2002 Winbond Electronic Corporation
-//
-// Module Name:
-// Wb35Rx.c
-//
-// Abstract:
-// Processing the Rx message from down layer
-//
-//============================================================================
+/*
+ * ============================================================================
+ * Copyright (c) 1996-2002 Winbond Electronic Corporation
+ *
+ * Module Name:
+ * Wb35Rx.c
+ *
+ * Abstract:
+ * Processing the Rx message from down layer
+ *
+ * ============================================================================
+ */
#include <linux/usb.h>
#include <linux/slab.h>
return;
}
- memcpy(skb_put(skb, PacketSize),
- pRxBufferAddress,
- PacketSize);
-
-/*
- rx_status.rate = 10;
- rx_status.channel = 1;
- rx_status.freq = 12345;
- rx_status.phymode = MODE_IEEE80211B;
-*/
+ memcpy(skb_put(skb, PacketSize), pRxBufferAddress, PacketSize);
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
ieee80211_rx_irqsafe(hw, skb);
static void Wb35Rx_adjust(struct wb35_descriptor *pRxDes)
{
- u32 * pRxBufferAddress;
+ u32 *pRxBufferAddress;
u32 DecryptionMethod;
u32 i;
u16 BufferSize;
pRxBufferAddress = pRxDes->buffer_address[0];
BufferSize = pRxDes->buffer_size[0];
- // Adjust the last part of data. Only data left
- BufferSize -= 4; // For CRC-32
+ /* Adjust the last part of data. Only data left */
+ BufferSize -= 4; /* For CRC-32 */
if (DecryptionMethod)
BufferSize -= 4;
- if (DecryptionMethod == 3) // For CCMP
+ if (DecryptionMethod == 3) /* For CCMP */
BufferSize -= 4;
- // Adjust the IV field which after 802.11 header and ICV field.
- if (DecryptionMethod == 1) // For WEP
- {
- for( i=6; i>0; i-- )
- pRxBufferAddress[i] = pRxBufferAddress[i-1];
+ /* Adjust the IV field which after 802.11 header and ICV field. */
+ if (DecryptionMethod == 1) { /* For WEP */
+ for (i = 6; i > 0; i--)
+ pRxBufferAddress[i] = pRxBufferAddress[i - 1];
pRxDes->buffer_address[0] = pRxBufferAddress + 1;
- BufferSize -= 4; // 4 byte for IV
- }
- else if( DecryptionMethod ) // For TKIP and CCMP
- {
- for (i=7; i>1; i--)
- pRxBufferAddress[i] = pRxBufferAddress[i-2];
- pRxDes->buffer_address[0] = pRxBufferAddress + 2;//Update the descriptor, shift 8 byte
- BufferSize -= 8; // 8 byte for IV + ICV
+ BufferSize -= 4; /* 4 byte for IV */
+ } else if (DecryptionMethod) { /* For TKIP and CCMP */
+ for (i = 7; i > 1; i--)
+ pRxBufferAddress[i] = pRxBufferAddress[i - 2];
+ pRxDes->buffer_address[0] = pRxBufferAddress + 2; /* Update the descriptor, shift 8 byte */
+ BufferSize -= 8; /* 8 byte for IV + ICV */
}
pRxDes->buffer_size[0] = BufferSize;
}
static u16 Wb35Rx_indicate(struct ieee80211_hw *hw)
{
- struct wbsoft_priv *priv = hw->priv;
- struct hw_data * pHwData = &priv->sHwData;
+ struct wbsoft_priv *priv = hw->priv;
+ struct hw_data *pHwData = &priv->sHwData;
struct wb35_descriptor RxDes;
- struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
- u8 * pRxBufferAddress;
- u16 PacketSize;
- u16 stmp, BufferSize, stmp2 = 0;
- u32 RxBufferId;
+ struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
+ u8 *pRxBufferAddress;
+ u16 PacketSize;
+ u16 stmp, BufferSize, stmp2 = 0;
+ u32 RxBufferId;
- // Only one thread be allowed to run into the following
+ /* Only one thread be allowed to run into the following */
do {
RxBufferId = pWb35Rx->RxProcessIndex;
- if (pWb35Rx->RxOwner[ RxBufferId ]) //Owner by VM
+ if (pWb35Rx->RxOwner[RxBufferId]) /* Owner by VM */
break;
pWb35Rx->RxProcessIndex++;
pWb35Rx->RxProcessIndex %= MAX_USB_RX_BUFFER_NUMBER;
pRxBufferAddress = pWb35Rx->pDRx;
- BufferSize = pWb35Rx->RxBufferSize[ RxBufferId ];
+ BufferSize = pWb35Rx->RxBufferSize[RxBufferId];
- // Parse the bulkin buffer
+ /* Parse the bulkin buffer */
while (BufferSize >= 4) {
- if ((cpu_to_le32(*(u32 *)pRxBufferAddress) & 0x0fffffff) == RX_END_TAG) //Is ending? 921002.9.a
+ if ((cpu_to_le32(*(u32 *)pRxBufferAddress) & 0x0fffffff) == RX_END_TAG) /* Is ending? */
break;
- // Get the R00 R01 first
+ /* Get the R00 R01 first */
RxDes.R00.value = le32_to_cpu(*(u32 *)pRxBufferAddress);
PacketSize = (u16)RxDes.R00.R00_receive_byte_count;
- RxDes.R01.value = le32_to_cpu(*((u32 *)(pRxBufferAddress+4)));
- // For new DMA 4k
+ RxDes.R01.value = le32_to_cpu(*((u32 *)(pRxBufferAddress + 4)));
+ /* For new DMA 4k */
if ((PacketSize & 0x03) > 0)
PacketSize -= 4;
- // Basic check for Rx length. Is length valid?
+ /* Basic check for Rx length. Is length valid? */
if (PacketSize > MAX_PACKET_SIZE) {
- #ifdef _PE_RX_DUMP_
+#ifdef _PE_RX_DUMP_
printk("Serious ERROR : Rx data size too long, size =%d\n", PacketSize);
- #endif
+#endif
pWb35Rx->EP3vm_state = VM_STOP;
pWb35Rx->Ep3ErrorCount2++;
break;
}
- // Start to process Rx buffer
-// RxDes.Descriptor_ID = RxBufferId; // Due to synchronous indicate, the field doesn't necessary to use.
- BufferSize -= 8; //subtract 8 byte for 35's USB header length
+ /*
+ * Wb35Rx_indicate() is called synchronously so it isn't
+ * necessary to set "RxDes.Desctriptor_ID = RxBufferID;"
+ */
+ BufferSize -= 8; /* subtract 8 byte for 35's USB header length */
pRxBufferAddress += 8;
RxDes.buffer_address[0] = pRxBufferAddress;
packet_came(hw, pRxBufferAddress, PacketSize);
- // Move RxBuffer point to the next
+ /* Move RxBuffer point to the next */
stmp = PacketSize + 3;
- stmp &= ~0x03; // 4n alignment
+ stmp &= ~0x03; /* 4n alignment */
pRxBufferAddress += stmp;
BufferSize -= stmp;
stmp2 += stmp;
}
- // Reclaim resource
- pWb35Rx->RxOwner[ RxBufferId ] = 1;
+ /* Reclaim resource */
+ pWb35Rx->RxOwner[RxBufferId] = 1;
} while (true);
-
return stmp2;
}
static void Wb35Rx_Complete(struct urb *urb)
{
- struct ieee80211_hw *hw = urb->context;
- struct wbsoft_priv *priv = hw->priv;
- struct hw_data * pHwData = &priv->sHwData;
- struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
- u8 * pRxBufferAddress;
- u32 SizeCheck;
- u16 BulkLength;
- u32 RxBufferId;
- R00_DESCRIPTOR R00;
-
- // Variable setting
+ struct ieee80211_hw *hw = urb->context;
+ struct wbsoft_priv *priv = hw->priv;
+ struct hw_data *pHwData = &priv->sHwData;
+ struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
+ u8 *pRxBufferAddress;
+ u32 SizeCheck;
+ u16 BulkLength;
+ u32 RxBufferId;
+ R00_DESCRIPTOR R00;
+
+ /* Variable setting */
pWb35Rx->EP3vm_state = VM_COMPLETED;
- pWb35Rx->EP3VM_status = urb->status;//Store the last result of Irp
+ pWb35Rx->EP3VM_status = urb->status; /* Store the last result of Irp */
RxBufferId = pWb35Rx->CurrentRxBufferId;
pRxBufferAddress = pWb35Rx->pDRx;
BulkLength = (u16)urb->actual_length;
- // The IRP is completed
+ /* The IRP is completed */
pWb35Rx->EP3vm_state = VM_COMPLETED;
- if (pHwData->SurpriseRemove || pHwData->HwStop) // Must be here, or RxBufferId is invalid
+ if (pHwData->SurpriseRemove || pHwData->HwStop) /* Must be here, or RxBufferId is invalid */
goto error;
if (pWb35Rx->rx_halt)
goto error;
- // Start to process the data only in successful condition
- pWb35Rx->RxOwner[ RxBufferId ] = 0; // Set the owner to driver
+ /* Start to process the data only in successful condition */
+ pWb35Rx->RxOwner[RxBufferId] = 0; /* Set the owner to driver */
R00.value = le32_to_cpu(*(u32 *)pRxBufferAddress);
- // The URB is completed, check the result
+ /* The URB is completed, check the result */
if (pWb35Rx->EP3VM_status != 0) {
- #ifdef _PE_USB_STATE_DUMP_
+#ifdef _PE_USB_STATE_DUMP_
printk("EP3 IoCompleteRoutine return error\n");
- #endif
+#endif
pWb35Rx->EP3vm_state = VM_STOP;
goto error;
}
- // 20060220 For recovering. check if operating in single USB mode
+ /* For recovering. check if operating in single USB mode */
if (!HAL_USB_MODE_BURST(pHwData)) {
- SizeCheck = R00.R00_receive_byte_count; //20060926 anson's endian
+ SizeCheck = R00.R00_receive_byte_count;
if ((SizeCheck & 0x03) > 0)
SizeCheck -= 4;
SizeCheck = (SizeCheck + 3) & ~0x03;
- SizeCheck += 12; // 8 + 4 badbeef
+ SizeCheck += 12; /* 8 + 4 badbeef */
if ((BulkLength > 1600) ||
(SizeCheck > 1600) ||
(BulkLength != SizeCheck) ||
- (BulkLength == 0)) { // Add for fail Urb
+ (BulkLength == 0)) { /* Add for fail Urb */
pWb35Rx->EP3vm_state = VM_STOP;
pWb35Rx->Ep3ErrorCount2++;
}
}
- // Indicating the receiving data
+ /* Indicating the receiving data */
pWb35Rx->ByteReceived += BulkLength;
- pWb35Rx->RxBufferSize[ RxBufferId ] = BulkLength;
+ pWb35Rx->RxBufferSize[RxBufferId] = BulkLength;
- if (!pWb35Rx->RxOwner[ RxBufferId ])
+ if (!pWb35Rx->RxOwner[RxBufferId])
Wb35Rx_indicate(hw);
kfree(pWb35Rx->pDRx);
- // Do the next receive
+ /* Do the next receive */
Wb35Rx(hw);
return;
error:
- pWb35Rx->RxOwner[ RxBufferId ] = 1; // Set the owner to hardware
+ pWb35Rx->RxOwner[RxBufferId] = 1; /* Set the owner to hardware */
atomic_dec(&pWb35Rx->RxFireCounter);
pWb35Rx->EP3vm_state = VM_STOP;
}
-// This function cannot reentrain
+/* This function cannot reentrain */
static void Wb35Rx(struct ieee80211_hw *hw)
{
- struct wbsoft_priv *priv = hw->priv;
- struct hw_data * pHwData = &priv->sHwData;
- struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
- u8 * pRxBufferAddress;
- struct urb *urb = pWb35Rx->RxUrb;
- int retv;
- u32 RxBufferId;
-
- //
- // Issuing URB
- //
+ struct wbsoft_priv *priv = hw->priv;
+ struct hw_data *pHwData = &priv->sHwData;
+ struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
+ u8 *pRxBufferAddress;
+ struct urb *urb = pWb35Rx->RxUrb;
+ int retv;
+ u32 RxBufferId;
+
+ /* Issuing URB */
if (pHwData->SurpriseRemove || pHwData->HwStop)
goto error;
if (pWb35Rx->rx_halt)
goto error;
- // Get RxBuffer's ID
+ /* Get RxBuffer's ID */
RxBufferId = pWb35Rx->RxBufferId;
if (!pWb35Rx->RxOwner[RxBufferId]) {
- // It's impossible to run here.
- #ifdef _PE_RX_DUMP_
+ /* It's impossible to run here. */
+#ifdef _PE_RX_DUMP_
printk("Rx driver fifo unavailable\n");
- #endif
+#endif
goto error;
}
- // Update buffer point, then start to bulkin the data from USB
+ /* Update buffer point, then start to bulkin the data from USB */
pWb35Rx->RxBufferId++;
pWb35Rx->RxBufferId %= MAX_USB_RX_BUFFER_NUMBER;
return;
error:
- // VM stop
+ /* VM stop */
pWb35Rx->EP3vm_state = VM_STOP;
atomic_dec(&pWb35Rx->RxFireCounter);
}
void Wb35Rx_start(struct ieee80211_hw *hw)
{
- struct wbsoft_priv *priv = hw->priv;
- struct hw_data * pHwData = &priv->sHwData;
- struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
+ struct wbsoft_priv *priv = hw->priv;
+ struct hw_data *pHwData = &priv->sHwData;
+ struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
- // Allow only one thread to run into the Wb35Rx() function
+ /* Allow only one thread to run into the Wb35Rx() function */
if (atomic_inc_return(&pWb35Rx->RxFireCounter) == 1) {
pWb35Rx->EP3vm_state = VM_RUNNING;
Wb35Rx(hw);
atomic_dec(&pWb35Rx->RxFireCounter);
}
-//=====================================================================================
-static void Wb35Rx_reset_descriptor( struct hw_data * pHwData )
+static void Wb35Rx_reset_descriptor(struct hw_data *pHwData)
{
- struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
- u32 i;
+ struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
+ u32 i;
pWb35Rx->ByteReceived = 0;
pWb35Rx->RxProcessIndex = 0;
pWb35Rx->EP3vm_state = VM_STOP;
pWb35Rx->rx_halt = 0;
- // Initial the Queue. The last buffer is reserved for used if the Rx resource is unavailable.
- for( i=0; i<MAX_USB_RX_BUFFER_NUMBER; i++ )
+ /* Initial the Queue. The last buffer is reserved for used if the Rx resource is unavailable. */
+ for (i = 0; i < MAX_USB_RX_BUFFER_NUMBER; i++)
pWb35Rx->RxOwner[i] = 1;
}
-unsigned char Wb35Rx_initial(struct hw_data * pHwData)
+unsigned char Wb35Rx_initial(struct hw_data *pHwData)
{
struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
- // Initial the Buffer Queue
- Wb35Rx_reset_descriptor( pHwData );
+ /* Initial the Buffer Queue */
+ Wb35Rx_reset_descriptor(pHwData);
pWb35Rx->RxUrb = usb_alloc_urb(0, GFP_ATOMIC);
- return (!!pWb35Rx->RxUrb);
+ return !!pWb35Rx->RxUrb;
}
-void Wb35Rx_stop(struct hw_data * pHwData)
+void Wb35Rx_stop(struct hw_data *pHwData)
{
struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
- // Canceling the Irp if already sends it out.
+ /* Canceling the Irp if already sends it out. */
if (pWb35Rx->EP3vm_state == VM_RUNNING) {
- usb_unlink_urb( pWb35Rx->RxUrb ); // Only use unlink, let Wb35Rx_destroy to free them
- #ifdef _PE_RX_DUMP_
+ usb_unlink_urb(pWb35Rx->RxUrb); /* Only use unlink, let Wb35Rx_destroy to free them */
+#ifdef _PE_RX_DUMP_
printk("EP3 Rx stop\n");
- #endif
+#endif
}
}
-// Needs process context
-void Wb35Rx_destroy(struct hw_data * pHwData)
+/* Needs process context */
+void Wb35Rx_destroy(struct hw_data *pHwData)
{
struct wb35_rx *pWb35Rx = &pHwData->Wb35Rx;
do {
- msleep(10); // Delay for waiting function enter 940623.1.a
+ msleep(10); /* Delay for waiting function enter */
} while (pWb35Rx->EP3vm_state != VM_STOP);
- msleep(10); // Delay for waiting function exit 940623.1.b
+ msleep(10); /* Delay for waiting function exit */
if (pWb35Rx->RxUrb)
- usb_free_urb( pWb35Rx->RxUrb );
- #ifdef _PE_RX_DUMP_
+ usb_free_urb(pWb35Rx->RxUrb);
+#ifdef _PE_RX_DUMP_
printk("Wb35Rx_destroy OK\n");
- #endif
+#endif
}
projects / linux-flexiantxendom0-3.2.10.git / blobdiff